Photosynthetic characteristics of main urban forest species Syringa oblata in Shenyang

Li, H.; He, X.; Chen, W.

Ying Yong Sheng Tai Xue Bao 15(12): 2245-2249

2004


ISSN/ISBN: 1001-9332
PMID: 15825435
Document Number: 579846
Using LI-6400 CO2 gas analysis system and by the methods of correlation analysis and multinomial regression, this paper studied the diurnal changes of Syringa oblata photosynthesis during different seasons and assessed the correlation between net photosynthetic rate and environmental factors. The results indicated that the photosynthetic rate showed a double-peak curve in spring and summer and a single peak curve in autumn. The major factors affecting the photosynthetic rate were the solar radiation and stomatal conductance in spring and summer, and the stomatal conductance and intercellular CO2 intensity in autumn. The related equation was also constructed in this paper.

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